藤本ひかり
type: MusicGroup
genre: japanese indie
popularity: 2
followers: 705
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa20e33350a533eb960eda51f68df9714c55c5d109369dd04fae12ed60561da52
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953915
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953915
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a485c11-0231-4a71-afe4-7fafd8d8d950.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a485c11-0231-4a71-afe4-7fafd8d8d950.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1a485c11-0231-4a71-afe4-7fafd8d8d950
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:36:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa20e33350a533eb960eda51f68df9714c55c5d109369dd04fae12ed60561da52","name":"藤本ひかり","registered_at":"2026-06-15T22:41:23Z","symbol":"NIM0854586","token_address":"0x7b77f72b8b0cd32c884036c24afd258753438501","type":"artist","uuid":"1a485c11-0231-4a71-afe4-7fafd8d8d950"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20e33350a533eb960eda51f68df9714c55c5d109369dd04fae12ed60561da52. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a485c11-0231-4a71-afe4-7fafd8d8d950.json and https://artists.proofprofile.net/proofs/artist/1a485c11-0231-4a71-afe4-7fafd8d8d950.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xa20e33350a533eb960eda51f68df9714c55c5d109369dd04fae12ed60561da52","name":"藤本ひかり","registered_at":"2026-06-15T22:41:23Z","symbol":"NIM0854586","token_address":"0x7b77f72b8b0cd32c884036c24afd258753438501","type":"artist","uuid":"1a485c11-0231-4a71-afe4-7fafd8d8d950"}
album: スローモーションブルー
  type: MusicAlbum
  date published: 2024-07-24
  track: スローモーションブルー
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217175
    explicit: false
    by artist: 藤本ひかり
    in album: スローモーションブルー
      type: MusicAlbum
      date published: 2024-07-24
    genre: japanese indie
    isrc code: TCJPB2400291
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T02:32:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8f0503429693b6fa636ff8aed81caca431c92d9f37879522fab514ac56ddf254
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958823
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958823
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2400291
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T05:35:30Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0503429693b6fa636ff8aed81caca431c92d9f37879522fab514ac56ddf254. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:35:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2400291.
      date published: 2026-07-20T05:35:30Z
    audio: スローモーションブルー
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 175.093
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.427
      additional property: Energy
        type: PropertyValue
        value: 0.815
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.434
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.668
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.246
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor